Axle mill



June 26,1923. 1.460.061

. G. S. HAMILTON ET AL AXLE MILL Filed Feb. 15 1922 2 Sheets-Sheet 1June 26, I923. 1.460.061 K, G. S. HAMILTON ET AL I AXLE MILL Filed Feb.15, 1922 2 Sheets-Sheet 2 Patented June 26, 192.3.

GAVIN SHEARER HAMILTON, OFMOTHERWELL, AND THOMAS rHoMson; on Home TOWN,SCOTLAND.

T 0 all whom it may concern: 1

Be it known that we, GAVIN SHEARER HAMILTQN and THOMAS Tnortso v,subjects of the King of the United Kingdom. of

Great Britain and Ireland, andresiding, re;

spectively, at lVlot-herwell, Scotland, and Holytown, Scotland, haveinventeda certain new and useful Improvement in Axle Mills, of which thefollowing isa specification. A v

This invention relates to axlemills of the type comprising superposedrelatively repressed and rolled to the desired configuration.

The present invention is characterized primarily by the feature that theplates are divided into three sets of which the intermediate set isfirst brought into operation to form the middle portion of the axlewhereupon the external sets are brought into operation to form the endsof the axle.

A further feature consists in the provision of means for impartingfeeding movements concomitantly to the upper and lower external sets ofplates such means comprising power operated screw-and-nut feedingmechanism for the upper external sets and feeding wedges interconnectedtherewith for the lower external sets.

In the drawings which illustrate the invention Fig. 1 is an endelevation, Fig. 2 a side elevation and Fig. 3 a plan. 1 v 1 The axlemill shown comprises three sets of plates 1, 1 2, 2 3, 3 in superimposedrelation and guided in a frame 4 to perform rectilinear reciprocatorymovements in opposite directions.

y The plates 1, 2 and 3. are connected to move simultaneously lengthwiseby lugs 30, 31 projecting inwardly from the plates2, 3 into engagementwith vertically disposed slots 32, 33 in the plate 1, the arrangementbeing such that the plates 2, 3 are free to move vertically of theplate 1. Similarly, the plates 1*, 2 and 3 are connected to movesimultaneously lengthwise, the plates 2, 3 being formed with lugs 30",31 and the plate 1 being formed with slots 32, 33 come the plate 1 isadapted guides AXLE MILL.

sponding in function to the lugs 30, 31 and slots 32,33; l e

The plates 2, are providedwith eyes 3 1, 35 and the plates 2?, 3? areprovided with eyes 34?, 35? connected respectively to rods, 36, 37, 38.39 which, in turn are connected at 36337", 38 and 39 to levers 40, 41rigidly secured to a rock-shaft 42 journalled in pedestals 4:3, 4-4.Connected to the levers 4O, 41 are rods-45, 16 which are constrained toreciprocate by any convenient source of power. The rods 45,46 are causedto re ciproca-te continuously so that the plates 1, 2 and 3 reciprocatecontinuously and the plates 1 2? and 3 reciprocate continuously in thedirections opposite to those of the plates 1, 2 and 3.

The adjacent faces of the sets of plates are spaced to accommodate theiron or steel bar 5 and are shaped to conform with the contour of thefinished axle. Means hereinafter described are provided for impartingfeeding movements to the intermediate set.

to form the middle portion of the axle and then for imparting feedingmovements to the external sets to form the ends of the axle. It will beseen that the bar 5 is constrained to rotate between the plates and ispressed and rolled to the desired configuration.

In the operation of the mill, the intermediate set 1, 1*"- is firstmoved vertically and thus brought into operation to form the middleportion of the axle, sets 2, 2 and 3, 3, meanwhile reciprocating idlythen the external sets 2, 2, 3, 3 which are preferably interconnectedare moved vertically and thus brought into operation to form the ends ofthe axle.

The plate 1 is immovable vertically and to be fed towards the bar 5 toform the middle portion of the axle by means of screws 6 inscrew-threaded engagement with afixed bar 7 and pressmg on the guide 8for the plate 1, the screws being simultaneously rotatable by motordriven worms 9 and worm wheels 10.

For imparting feeding movements con comitantly to the upper and lowerexternal sets of plates 2, 2 8, 3 whereby to form the ends of the axlethere are provided screws 11 engaging the bar 7 and pressing the 12 forthe plates 2, 3, and connected motor driven worms 13 engaging wormwheels 13* secured to the screws 11, the sets To reduce friction,rollers 19 are inserted:

between the several guides and the relative plates whereby to form aroller track.

It will be seen that, due to division of the plates into sets onlycertain parts of the length of the bar need be compressed at any timeduring the rolling process, the parts of the bar being thus allowed toswell or' lengthen as required according to thework being done on thecentre or on the journal portions of the bar.

1. An axlemill comprising, in combination, three sets of superposedplates mounted for relative reoiproca-tory movement and presentingoperative faces spaced to accommodate the bar to be treated and shapedto conform with the contour of the finished axle and means for firstimparting feeding movements to the intermediate set of the three to'formthemiddle portion of the axle and then imparting feeding movements tothe external sets of the three toiorm the ends of the axle.'

2. An axle mill comprising, in combination, three sets'ofrelativelyreoiprocatory upper and lower plates presenting operativefaces spaced to accommodate the bar to be treated and shaped to conformwith the contour of the finished axle, means for imparting feeding"movements firstly to the intermediate set of the three so as to form themiddle portion of the axle, and means for imparting feeding movementssecondly to the external sets of the three so as to form the endsof theaxle, said lalst named means comprising screwand-nut; mechanisms forfeeding theupper sets and Wedges for feeding' the lower sets. j

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses. v

' GAVIN SHEARER HAMILTON. THOMAS THOMSON; Witnesses:

KATE FOTHERINGHAM, MAY Ross.

